https://www.dhunplugged.com/dh-login/

I’m unable to access my admin dashboard because the login functionality is not working. I’ve already tried the following steps:
Error: https://prnt.sc/nuqVw4UZZNzM

Renamed the plugins folder
Switched the theme
Checked the root files
Please assist me in resolving this issue.

The page I need help with: [log in to see the link]